Walk In Enviornmental Climatic Chamber
Walk In Enviornmental Climatic Chamber
Model : SRL / WIECH-12
Application :
These equipments are used for climatic & durability tests of electrical & electronic components, corrosion test on mechanical assemblies, materials for simulated tropical & extreme tropical conditions.
Salient Features : (Optional)
First time in India developed by SR Lab Instruments. Standby Refrigeration, Standby Humidification & Standby safety controller with auto changeover, In case of failure of the main system, To run the system for a longer with uninterrupted operation. Also USFDA approved 21 CFR compliance software, where in case of temp. & RH fluctuation, SMS & Email alert shall be sent to registered user nos and minute details of operation of the chamber can be downloaded weekly, Monthly or Quarterly
Ecocentric System :
Chamber runs on the basis of Dewpoint control. Less deviations during short-term door opening & power failure. Less utility area Increased storage area. Low operating cost. Minimum power & water consumption. Reduced deviations. Less breakdowns due to standby refrigeration & humidification system. Due to PLC HMI & controlling through microprocessor based PID Temp. & RH operations the on time of both Temp. & RH system is reduced & efficiency of this system is increased with reduced energy consumption
Construction :
MOC of the Chamber will be: Double walled Chamber with Inner of stainless steel 304 grade & outer of GI duly pre painted PUF Insulation in between two walls.
Insulation of Walls, ceiling and floor : 60mm thick puff panels with puff in-place density of minimum of 1kg per cubic foot or its equivalent. Insulation with expended polystyrene or any equivalent material having R factor of minimum 34. Insulation material shall maintain its dimensional. stability in an operating temperature range of 5°C to +60°C Insulation puff.
Door :Flush type doors of metal surfaces (as per above specification of metal) with proper puff insulation of above mentioned standard or its equivalent. Doors shall have magnetic snap-in perimeter gasket or its equivalent, self-closing cam lift gravity hinges or its equivalent, a posi-seal door closure or its equivalent. Door shall have key lockable latch handle with an inside safety release. Doorjambs shall be made fiberglass reinforced plastic or any other suitable material compatible with constructed door.
Heating / Humidification & Dehumidification :
Custom built Stainless Steel long lasting tubular heaters are used as heating element. The Stainless Steel fins ensure better heat transfer. Will consist of humidifier tank fitted with boiler heaters, and give alarm if fault occurs or Ultrasonic Humidification System. Water reservoir tank will be connected to the humidifier. De-humidification coils are installed below the cooling coils for lower humidity.
Controller :
PID Action : Provides Precise Temperature, Maintain Uniform
And Accurate Growth Environment, Timer, Alarm, Auto-Tuning
And Auto Start Stop Function. Technical Design and Construction
Silent Fan Motor to Maintain Uniform Temperature Over Temp.
and Current Protection Capability Ensure User Safety, Adjustable
Sliding Rack, Alert Unexpected Interruption Of Electrical Power
Or Unauthorized Change.
Optional : [PLC with HMI TFT screen]
PLC-HMI Provides Stepwise Programmable Controller
with 50 or more programs Provides Automatic Operation of
Variable Temperature, Humidity Value, 100 Or More Cycles with
Minimum 100 Sections in Each Cycle. Data logger with
RS 485/232 port for logging & transfer of data. Auto restart,
power failure event logging, memory protection S.M.A.R.T/ SELF
diagnostics system. Data collected from each logger shall be
transferred to central data storage unit. Shall provide central data
storage unit with facility to retrieve the stared data at any time.
Multiple programs linked together to simulate natural condition.
Control system shall have audio/audiovisual warning/alarm when
set temperature/RH is below or above the set values. Ethernet
communication port. Ambient temp. monitoring. Over Temp. and
Current Protection Capability Ensure User Safety, Adjustable
Sliding Rack, Water Level Sensor Alert Control System.
Total no of output: 23 channels. Alert Unexpected Interruption of
Electrical Power or Unauthorized Change.4 digit password lock.
Refrigeration system : (Air Cooled)
Bitzer / Emerson /Danfoss/Tecumseh : make compressors, 2 stage cooling system for TEMP. & Humidity Control. All accessories such as HPCO/LPCO, Oil Separators, Dryers,Relays, OLP etc. of Danfoss / Tecumseh Emerson Make. CFC free refrigerant to be used to comply with the New Environmental Regulation. Will have suitable tonnage compressor for maintain temperature with lights on. Will have hermetically sealed condensing unit compressor coupled with Evaporation coil and condenser, safe guarded by time delay circuit. Cabinet shall be supplied with air-cooled condensing unit with extended compressor life and close temperature control. Cooling system will be split type to place condenser unit in a ventilated area to avoid hot air in growth chamber. Cooled air shall be delivered in such a way to reduce or eliminate condensation within media dishes and to provide maximum uniformity In different research vessels. This may be through silent and durable fan motors or through any kind of advanced air diffusers. Air Cooled Condenser with solenoid & LP to pass hot gas to the chamber for uniformity & long life of compressor for continuous usage. Phenolic coating for cooling & condensing coils (All weather proof).
Air Circulation : [Laminar Type]
The new walk in Environmental Chamber is provided with best air circulation to give better temperature uniformity this is achieved by using one set of motor & blower in baffle wall Compartment to push treated air in working chamber. This system gives better than 1 deg c. temperature uniformity in working chamber, evaporator, heaters & steam injection system is from back side, behind baffle wall, the air circulation blower is also fitted in this compartment only. This arrangement helps to mix steam and air together and pass well mixed air inside the working chamber. Due to above system the temperature and humidity (R.H.) in complete chamber almost remains equal. No direct radiation on the specimen.
Temp. & Humidity Range :
-40°C to+100°C , Resolution : 0.1°C
Temp. Fluctuation : + 0.2 °C, Temp. Uniformity : + 1°C
Humidity Range : 10% to 98% RH, Resolution : 0.1%
Accuracy : + 1%R.H, Humidity Gradient : ~+ 3%
Heating Rate : Up to 5 C per/min.
Cooling Rate : Up to 5 C per/min.
Trays & Racks :
Removable SS perforated trays are provided, adjustable and will slide out for easy clean up. Assembled Stainless Steel racks to accommodate trays
Power Supply :
Single phase 230V AC, 50Hz / Three phase 440V AC, 50Hz
Refrigeration System :
A hermetically seated compressor with CFC free refrigerant provides temperature below ambient conditions.
Certification :
Documentation :
To comply with the documentation requirements, we provide IQ, OQ & PQ protocols to be executed before taking the chamber in to for regular use, and support the supply with the following documents with the detail operational and service manual.
Standard Operating Procedure (SOP)
Operational Manual for Controller
IQ,PQ,OQ protocols certificate.
Calibration certificate of all controlling modules with traceable to NABL / ERTL accredited labs.
Certificate of MOC.
Test Report of chamber prior to supply with mapping certificate.
wiring diagram for ease of service maintenance.